Home / 6,948.48-10,400.40-4,972.80

Finding the Fourth Proportional to 6,948.48, 10,400.40 and 4,972.80

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Solution

The fourth proportional to 6,948.48, 10,400.40 and 4,972.80 is: 7,443.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,948.48 : 10,400.40 = 4,972.80 : x
  2. Step 2: Convert to fraction form
    6,948.48/10,400.40 = 4,972.80/x
  3. Step 3: Cross multiply
    6,948.48x = 10,400.40 × 4,972.80
  4. Step 4: Simplify right side
    6,948.48x = 51,719,109.12
  5. Step 5: Solve for x
    x = 51,719,109.12/6,948.48
  6. Step 6: Final answer
    x = 7,443.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.